Know Everything About Celazole® T-Series Products

Celazole® T-Series products are PBI compounds designed for injection molding and extrusion.

Combining the superior mechanical properties and thermal resistance of PBI with the melt process ability of polyaryletherketones (PEEK or PEKK), these products offer cost-effective high performance. These products are available in pellet form.

Celazole® PBI (polybenzimidazole) is a unique and highly stable heterocyclic polymer. PBI polymers are characterized by high thermal stability; exhibit high strength, broad chemical resistance and unique compatibility with certain other polymers including the polyaryletherketone family.

The advantage of T-Series over ordinary PEEK is the unexpected

property set that results from the combination with PBI and other fillers (when present) that yield higher heat deflection temperatures (HDT), higher moduli, higher strength, improved wear resistance and lower creep. In the T-Series compound, HDT`s can be raised to 330ºC, just below the crystalline melting point of PEEK. The effect can be observed in the accompanying dynamic mechanical analysis (DMA) chart for TU-60 below.

A desirable balance of performance and tractability is obtained with the T-Series products that place the group`s thermo-mechanical

performance above PEEK, but below PBI. T-Series is designed for injection molding of parts that perform, but are cost effectively produced.

Celazole TU-60 DMA Storage Modulus compared with PEEK and PBI

Properties

• Excellent mechanical properties that are maintained well above the 143ºC Tg of the PEEK component

• Particularly low strain over time as compared to Polyimide and filled PEEK`s, even at 300ºC

• Allows users to enjoy improved levels of equipment performance, weight savings and/or thinner, smaller profiles

• Suited for mechanical service applications with high load at elevated temperatures

• Excellent thermal stability – enabling metal replacement

• Self-lubricating TL-60 displays low wear rates under conditions of high pressure (P) and velocity (V), a high limiting PV and cool operating temperatures in a lubricant free environment

Exceptional Wear Performance

Celazole TL-60 is an injection moldable polymer containing a dry-lube package with superior wear resistance

In a PV range of 100,000 – 200,000 psi-ft/min (3.5 – 7 MPa-m/sec), it`s Wear Factor K is just 20x10-10 in3-min/ft-lb-hr (4.0x10-7 mm3/N-m) and its Dynamic Coef. of Friction is just 0.055.

This material is designed for high loads at any speed and outperforms wear-grade PAI, PI, and PEEK under similar conditions. Without additional lubrication, it runs 40-50F Cooler than the competition.